Abstract A relatively new concept of sound absorption herein denominated as Metaporous concrete is presented, consisting a porous concrete-based absorber in which different acoustic resonators are embedded. Two finite element models were implemented, using the fluid-equivalent theory to describe solutions. Helmholtz resonator, samples, and prototype built tested through experimental techniques ...

Pervious concrete is an environment friendly solution for eliminating imperviousness-related drawbacks of conventional concrete. mixes are predominantly composed cement, coarse aggregate, and water. The partial or complete elimination fine aggregate results in porous structure, which influences performance pervious This article aimed at reviewing major factors involved the design mixes, namely ...